The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 24, 2004
Filed:
Jul. 17, 2003
Masanori Aoki, Hitachinaka, JP;
Yoshinori Ishizawa, Hitachinaka, JP;
Hitachi Koki Co., Ltd., Tokyo, JP;
Abstract
A pneumatically operated nail gun having an arrangement for preventing a cylinder from floating due to impact of a piston against a piston bumper. When the piston is pneumatically moved toward its lower dead center for nail driving, the piston strikes against the piston bumper. The bumper generates a force for urging the cylinder toward top dead center of the piston. A plurality of ribs provided with seat portions protrude radially outwardly from the cylinder and spaced away from each other in a circumferential direction thereof. A lower end of a separator, which interconnects a main housing with an exhaust cover, is positioned above each seat portion of each rib. A metal washer is seated on the seat portions, and a flexible damper ring is mounted on the washer and below the lower end of the separator. Upward force of the cylinder is moderated and dampened by the damper ring.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile